New light source LED for automotive lighting

1. Different from traditional incandescent bulbs. LEDs are a source of almost no heat. Therefore, the service life can reach 50,000 to 100,000 hours. That is, 5 to 10 years or more, generally no replacement is required during the life of the vehicle. The incandescent bulbs used in many vehicle signal lights have a lifespan of only one or two hundred hours, and may suddenly fail at any time during the driving of the vehicle, thus becoming a serious safety hazard.

2. LED lighting can directly convert electrical energy into light energy, fully meeting the needs of environmental protection and energy conservation. In contrast, an incandescent bulb can only convert electrical energy into light energy. The rest of the electricity is converted into heat and dissipated.

3. The startup time of ordinary incandescent bulbs is generally 100~300 milliseconds, while the startup time of ED is only tens of nanoseconds. For brake lights that are critical in high-speed driving, such a time difference means a braking distance of 4-7 meters and a greatly reduced accident rate!

LED light sources are also much less affected by voltage changes than ordinary light bulbs, demonstrating superior safety and reliability.

The LED is resistant to vibration. The impact resistance is also much better than ordinary bulbs, and it has a small size. Advantages such as strong environmental adaptability. It can be said that LED is an ideal light source for automotive lighting systems.

Hella, Germany, as a pioneer in the application of light-emitting diodes to automotive lighting, has provided LED signal lights and taillights in the European and American automotive markets for a decade. Due to price and model factors. At present, Lffi lighting products in the Chinese market are still in their infancy. But no doubt the prospects are very optimistic. In terms of the currently mature LED car signal lights, Hella has introduced high-position brake lights to the Chinese market. Brake light. Reversing lights. Turn signal. Position light. Position light.

Many functions such as side marker lights; for models. It is included for small passenger cars. Large buses. LED products for various motor vehicles such as construction machinery vehicles, agricultural vehicles and other commercial vehicles.

Technological innovations in LEDs and automotive headlamps At present, the application of LED light sources as automotive headlamps has become a very real issue. Significant differences between LED arrays and traditional light bulbs. This innovation is related to the complex optical design issues of automotive headlamp systems.

Regarding the application of LEDs in headlamps, one of the innovations is the CELIS(c) technology, which is the original lighting system (Central Lighting System). The system is based on a light guide technology with a central light source that delivers the light output from the white LED point source to the desired location by synthesizing the optical fiber. A number of new models in the BMW range have adopted the new "Angel Eye" headlight system with CELIS(c) ring front position light. Although CELIS(c) technology has not been able to use LEDs for high beam or low beam sources. But as a creative new idea, it is already a considerable breakthrough. Also. Several models of the BMW 5 series. The combination of CELIS(c)-LED taillights has been applied, which is quite refreshing. The launch of f 2 marks the beginning of a new era in LED lighting. Hella Hella is undoubtedly the leader of this new era. In this headlight provided by Hella Hella. The LED was first used as an illumination source (rather than a signal source) for a mass-produced model. Five white high-power LEDs are embedded in this chic Audi headlamp as a reliable and energy-efficient new daytime running light source. Provide car owners with unprecedented driving safety and comfort.

At the 2003 Frankfurt International Motor Show, the German company Hella exhibited a full-LED headlamp model that was successfully developed. Show us the light source arrangement of the entire headlamp combination. There is an LED low beam headlight module above and below the lamp body. The wider row in the middle is the LED high beam headlamp module. The narrower row above the high beam is the same amber front turn signal and white daytime running light.

This eye-catching display marks the official appearance of LED headlamps in the car, and the further development and application of technology and design is already coming out, and it is not far off.

The prospect of LED automotive lighting However, the LH) light source has to completely replace the bulb light source in automotive lighting. There is still a long way to go. Although high-power LEDs have long appeared. But its cost is also proportional to its power value. Stay high. As far as the relatively mature LED car signal lights are concerned. The variety is quite complete. According to its number of LEDs. The quality is different, the price is generally two to ten times the price of similar incandescent bulb products. As for the application of white LED products to automotive headlamps, the price has undoubtedly become a more obvious factor of containment. New technology products must open up a new market and guide the market. It is not a trick.

Another problem that comes with it. Some manufacturers are forced to reduce manufacturing costs in order to seize the market. As a result, products with quality problems are flooding the market.

If the car lighting uses poor quality LED products, it will often cause the LED to be dim, defective or even unable to illuminate as the light source of the car signal light, if the light can not be output normally.

Or because the light signal is too weak to be recognized. Obviously it is very dangerous.

The application prospect of LED in the automotive field still depends mainly on its speed of decline in production costs on a global scale and the further development of technology, as well as market conditions. If LED technology can be widely used in automobile manufacturing in a short period of time, it will be a leap in the history of automotive lighting systems!

The above articles and images are copyrighted by Hella Trading (Shanghai) Co., Ltd.

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